Enable a suitable ISA for the assembler around ll/sc so that code
builds even for processors that don't support the instructions.
Plus minor formatting fixes.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h
index c0bd8d0..80ea3fb 100644
--- a/include/asm-mips/atomic.h
+++ b/include/asm-mips/atomic.h
@@ -62,20 +62,24 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %0, %1 # atomic_add \n"
" addu %0, %2 \n"
" sc %0, %1 \n"
" beqzl %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else if (cpu_has_llsc) {
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %0, %1 # atomic_add \n"
" addu %0, %2 \n"
" sc %0, %1 \n"
" beqz %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
@@ -100,20 +104,24 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %0, %1 # atomic_sub \n"
" subu %0, %2 \n"
" sc %0, %1 \n"
" beqzl %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else if (cpu_has_llsc) {
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %0, %1 # atomic_sub \n"
" subu %0, %2 \n"
" sc %0, %1 \n"
" beqz %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
@@ -136,12 +144,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_add_return \n"
" addu %0, %1, %3 \n"
" sc %0, %2 \n"
" beqzl %0, 1b \n"
" addu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -149,12 +159,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_add_return \n"
" addu %0, %1, %3 \n"
" sc %0, %2 \n"
" beqz %0, 1b \n"
" addu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -179,12 +191,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_sub_return \n"
" subu %0, %1, %3 \n"
" sc %0, %2 \n"
" beqzl %0, 1b \n"
" subu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -192,12 +206,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_sub_return \n"
" subu %0, %1, %3 \n"
" sc %0, %2 \n"
" beqz %0, 1b \n"
" subu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -229,6 +245,7 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_sub_if_positive\n"
" subu %0, %1, %3 \n"
" bltz %0, 1f \n"
@@ -236,6 +253,7 @@
" beqzl %0, 1b \n"
" sync \n"
"1: \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -243,6 +261,7 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips2 \n"
"1: ll %1, %2 # atomic_sub_if_positive\n"
" subu %0, %1, %3 \n"
" bltz %0, 1f \n"
@@ -250,6 +269,7 @@
" beqz %0, 1b \n"
" sync \n"
"1: \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -367,20 +387,24 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %0, %1 # atomic64_add \n"
" addu %0, %2 \n"
" scd %0, %1 \n"
" beqzl %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else if (cpu_has_llsc) {
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %0, %1 # atomic64_add \n"
" addu %0, %2 \n"
" scd %0, %1 \n"
" beqz %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
@@ -405,20 +429,24 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %0, %1 # atomic64_sub \n"
" subu %0, %2 \n"
" scd %0, %1 \n"
" beqzl %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else if (cpu_has_llsc) {
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %0, %1 # atomic64_sub \n"
" subu %0, %2 \n"
" scd %0, %1 \n"
" beqz %0, 1b \n"
+ " .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
@@ -441,12 +469,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_add_return \n"
" addu %0, %1, %3 \n"
" scd %0, %2 \n"
" beqzl %0, 1b \n"
" addu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -454,12 +484,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_add_return \n"
" addu %0, %1, %3 \n"
" scd %0, %2 \n"
" beqz %0, 1b \n"
" addu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -484,12 +516,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_sub_return \n"
" subu %0, %1, %3 \n"
" scd %0, %2 \n"
" beqzl %0, 1b \n"
" subu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -497,12 +531,14 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_sub_return \n"
" subu %0, %1, %3 \n"
" scd %0, %2 \n"
" beqz %0, 1b \n"
" subu %0, %1, %3 \n"
" sync \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -534,6 +570,7 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_sub_if_positive\n"
" dsubu %0, %1, %3 \n"
" bltz %0, 1f \n"
@@ -541,6 +578,7 @@
" beqzl %0, 1b \n"
" sync \n"
"1: \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
@@ -548,6 +586,7 @@
unsigned long temp;
__asm__ __volatile__(
+ " .set mips3 \n"
"1: lld %1, %2 # atomic64_sub_if_positive\n"
" dsubu %0, %1, %3 \n"
" bltz %0, 1f \n"
@@ -555,6 +594,7 @@
" beqz %0, 1b \n"
" sync \n"
"1: \n"
+ " .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");